package com.wang.demo05;

public class BookStory implements Book{
    public void add() {
        System.out.println("添加了图书");
    }

    public void delete() {
        System.out.println("删除了图书");
    }

    public void update() {
        System.out.println("更新了图书");
    }

    public void query() {
        System.out.println("查询了图书");
    }
}
